When you get told a joke that absolutely bangs and your sides hurt with laughter, you may then exclaim "Bruh im weak" referring to how you are weakened by the laughter occurring.
"How do Ethiopians celebrate their kids first birthday?"
"No Idea mate"
"By putting flowers on the grave."
"Bruh Im Weak!"
"No Idea mate"
"By putting flowers on the grave."
"Bruh Im Weak!"
by Tibbit March 31, 2016